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Old 01-14-2011, 10:16 PM
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[HOW TO] Improve battery performance on the HTC Evo Shift 4G

Battery performance depends on many factors, we all know this.

Here is how to manage your battery life:

View battery usage

Before you are ready to charge your phone, you can view what has been using your battery during this charge cycle. Just go to Settings > About Phone > Battery > Battery use


Multiple radios

The multiple radios use battery life even when you are not using them. To improve battery life, turn off your Bluetooth, GPS, 4G, Wi-Fi and Wi-Fi hotspot if you are not using them.

Preloaded widgets are available for your Home screen to conveniently monitor use of radios:

Power Control Widget allows you to see radios that are ON and OFF
Widget > Power Control
Individual Widgets available for Airplane Mode, Bluetooth, GPS, Mobile Network, Wi-Fi, 4G, Hotspot
Widget > Settings and select what you want to monitor
Running Services Widget can help you identify services that are running that you no longer need that could be ended to save battery life
Shortcut > Settings > Running Services Widget


Live Wallpaper and backlight settings

Live Wallpaper uses significantly more battery than standard wallpapers when your screen is ON

Ambient Light Sensor controls backlight brightness based on your ambient lighting condition

Settings > Sound and Display > Brightness

Manual Control You can use your Power Control Widget to easily adjust your backlight intensity with a simple touch.

Email Applications Settings

Email synchronization settings can have significant impact to battery life and the ideal settings are going to vary by person. Try different configurations that achieve the best compromise between convenience and battery life.

Generally, less frequent email syncing equals better battery life

Shorter polling frequencies (5 minute, 10 minute, 15 minute) can actually be worse for your battery life than As Items Arrive, especially if you do not have high volumes of email.

Email settings allow you to set up peak and off-peak hours for email sync on each email account

Pop Account Mail > Menu > More > Settings > Send & Receive > Set Download Frequency

Exchange Account Mail > Menu > More > Settings > Send & Receive > Schedule

Manual Sync allows you to receive emails only when you choose to; this can be optimal for battery life if you don't necessarily need emails as quickly as they arrive. Sync by selecting Menu > Refresh


Preloaded Applications

There are several preloaded applications which update based on frequency settings:

Stocks
Weather
News
Twitter
Flickr
Facebook

These applications have a settings menu that typically can be accessed by using the Menu button while you are in the application and selecting Settings.

In general, the less frequently you allow these applications to update, the better your battery life. If you find there are applications you don't use at all, for the best battery life experience, configure the application to either not sync at all or to sync at the lowest frequency. You can also end the application or service by going to the Running Services Widget mentioned above.

Already knew this,


Google Talk

When you sign up for the Google Market or Gmail with your Gmail account information, you are also signed in to the Google Talk instant messaging application. The Talk application tracks the presence of your Google Talk contacts in order to let you know who is available to instant message. Each presence change uses power, even if you do not have the Talk application open.


If you do not use Talk on your device or do not mind if it is only operating when you actually have the application open, then you can eliminate this extra battery consumption:
  • Go to the listing of all applications
  • Tap Talk to open the application
  • Press Menu and tap Settings
  • Uncheck the automatically sign in box

Make sure you exit the application by going to Menu and selecting Sign Out

In order to again receive Instant Messages through the Talk application, all you'll need to do is open the Talk application again and it will automatically sign you in.

Note: Make sure you always exit the application by selecting Sign Out to reduce battery consumption. Exiting the application by use of the back or home keys will not sign you out and battery life will not be improved.



4G

The 4G radio should only be turned ON when the improved network speed is required for an application, such as YouTube, Web Browsing or Sprint Mobile Hotspot. When not in use, it's important to use the built-in 4G widget to turn the 4G radio OFF.


If you have your 4G radio ON, but are no longer in 4G coverage, then your device will be scanning in an attempt to re-acquire the 4G network. Your battery can be significantly drained by scanning, so if you know you will be out of 4G coverage for an extended period of time or if you are not acquiring a 4G signal as indicated in the task bar, it is important to turn your 4G radio OFF.


Even when in 4G markets, particularly when mobile, you may be going in and out of 4G coverage. If you notice that you do not have a 4G signal at any point in time, turning off the 4G radio will save you significant battery life. Simply turn it back on to check for 4G coverage when you are back in 4G coverage.


3rd-Party Applications

Be especially cautious with all third-party applications that you download from the Android Market. Often times these applications have not been designed with battery life in mind. Many of these applications significantly impact your battery life and quite often they remain running even when you exit the application. It's important for you to understand the behavior of all the applications you download and to:

Learn how to use the running services application or other third-party task managers to identify applications that are still running even when not in use and to end applications that are still running but no longer needed
Know how to close the application so that it does not continue running
If the applications synchronize data, make sure you optimize the synchronization settings for improved battery life

Source: Sprint
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Old 01-15-2011, 11:10 AM
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Re: [HOW TO] Improve battery performance on the HTC Evo Shift 4G

Great summary -- thanks!
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